include execution timing in branch comparison

[MichaelChirico]

Not an ideal benchmark, but with enough packages included this should give an idea of whether the linter is performing wildly differently between the branches

[AshesITR]

Good idea!
Would it be possible / useful to somehow export these timings in a structured way?
This could be used to quantitavely analyse the timing differences if they are obtained carefully (i.e. on the same idle system)

[MichaelChirico]

I think properly benchmarking the two branches is in scope for the script but would require a much bigger PR... filed this quickly as a first pass to give a rough idea (I don't expect it to work for, say, <30% performance difference, but something like 2x/3x should show up)

[AshesITR]

I agree. Let's add a follow-up issue for that.